20 Facts about Your Hair ...

Want to know some facts about your hair?

I canโ€™t claim to tell you everything you need to know about hair, but youโ€™ll be better informed than before you read this article...

and Iโ€™m sure youโ€™ll find these facts about your hair interesting.

1. The Biology of Hair

There are essentially 2 parts to a human hair โ€“ the root and the shaft.

The root sits in a well in the skin called a follicle, which contains sebum (oil) producing glands and a dermal papilla, which provides the nutrients for the hair to grow.

The hair outside the skin โ€“ i.e.

the visible bit, is the shaft.

The facts about hair should also explain that the shaft is made up of 3 layers;

a core of central cells called the medulla, a layer of protein fibers called the cortex, and finally, a layer of overlapping keratin cells called the cuticle.

The composition of hair is generally 51% carbon, 21% oxygen, 17% nitrogen, 6% hydrogen and 5% sodium.

Chains and Bonds